Rodenticide dispenser



Sept. 16, 1969 M. R. KARE RODENTICIDE DISPENSER Filed July 25, 1967INVENTOR ,MORLEY R. KARE BY KAJWU'W ATTORN EY United States Patent3,466,789 RODENTICIDE DISPENSER Morley R. Kare, Raleigh, N.C., assignorto Monsanto Company, St. Louis, Mo., a corporation of Delaware FiledJuly 25, 1967, Ser. No. 655,945 Int. Cl. A01m 25/00; B67d /64; A01 7/02US. Cl. 43-131 6 Claims ABSTRACT OF THE DISCLOSURE A substantiallytubular insecticide reservoir having an adjustable valve containingdispensing cap and a hood member enclosing an insecticide animal trough.

BACKGROUND OF THE INVENTION Rodenticide dispensers presently on themarket are cumbersome, hard to take apart and do not maintain a uniformlevel of rodenticide in the dispensing container. In addition thetypical dispenser is aesthetically objectionable to the housekeeper whois called upon to maintain these devices in or around the some, eatingestablishments and the like.

SUMMARY OF THE INVENTION The present invention presents a rodenticidedispenser which can be simply activated, positioned and then requires nooher maintenance except to throw away when empty. Furthermore thisdispenser discourages children and insects and by construction thelarger domestic animals from consuming the rodenticide yet at all timesthe bait is readily available to the rodents.

In accordance with this invention there is provided a rodenticidedispenser comprising a substantially tubular rodenticide reservoirhaving an end surface and opposite the end surface, such as an outwardlyextending tubular neck, adapted to receive a cap having an aperturetherein and a substantially tubular dispenser housing rotatable aroundthe circumference of said neck and cap which has an internal end wallwith an aperture therein which is in contact with the planar surface ofthe cap and a partial external wall so positioned with respect to theinternal wall that a rodenticide dispensing cup is formed and withrespect to the opposite end of the dispenser housing a rodent receivingchamber is formed.

BRIEF DESCRIPTION OF THE DRAWING In the drawings,

FIG. 1 is an overall longitudinal view of a rodenticide dispenser madeaccording to the present invention;

FIG. 2 is an exploded longitudinal view of the rodenticide dispensershowing reservoir, reservoir cap and rodenticide dispenser and fiowcontrol unit;

FIG. 3 is an exploded longitudinal view of a modified rodenticidereservoir and internal reservoir cap;

FIG. 4 is a longitudinal view of a modified rodenticide reservoir whichis cylindrical with stabilizing feet.

Referring to the drawings and the numerals of reference thereon, arodenticide dispenser assembly is illustrated generally having areservoir which has an outwardly extending tubular neck 11 to which ismounted the reservoir cap either the external type 14 or the internaltype 22 and when the external type is used the tubular neck containsengaging lugs or screw threads 12 to engage the external cap 14. Whilethe greatest simplicity is attained by making the reservoir 10 withgenerally fiat sides, the reservoir 10 may be cylindrical in nature andequipped with stabilizing legs 28. In the various modifications of thereservoir outward extending tubular neck 11 the rodenticide isdischarged through aperture 23.

3,466,789 Patented Sept. 16, 1969 The external reservoir cap 14 withrodenticide aperture 25 contains on the interior cylindrical wallengaging lugs or threads 15 which engage the lugs or screw threads 12 ofthe outwardly extending tubular neck 11.

The rodenticide aperture 23 of the outwardly extending tubular neck 11may alternatively be capped by the use of an internal reservoir cap 22with rodenticide aperture 25. The internal cap 22 is maintained in therodenticide aperture 23 by sufiicient friction so as to form a liquidretaining seal between the internal cap 22 and the rodenticide aperture23.

The dispenser housing 18- is fitted over completely encircles theoutwardly extending tubular neck 11 when the internal reservoir cap 22is employed. When the external reservoir cap 14 is employed thedispenser housing 18 is slipped over and completely encircles the sidecylindrical walls of the external cap 14. The distance to which thedispenser housing 18 is fitted over the external reservoir cap 14 oroutwardly extending tubular neck 11 when the internal reservoir cap 22is employed is determined by the permanent placement within thedispenser housing 18 of an internal end wall 20 permanently mountedtherein and containing a rodeticide dispenser aperture 26 through whichthe rodenticide flows into the rodent feeding cup 27 which is formed bythe interior of the dispenser housing 18, internal end wall 20 and theexternal end wall 19. The dispenser housing 18 is so sized as to readilypermit rodents to consume the bait while rendering it very difi'icultfor larger animals to obtain the bait.

The dispenser is prepared for use by filling the reservoir 10 with theliquid rodenticide and capping the reservoir 10 as desired with theexternal reservoir cap 14 or internal reservoir cap 22 and thereafterslipping the dispenser housing 18 over the exterior reservoir cap 14 oroutwardly extruding tubular neck 11 when the internal reservoir cap 22is employed in such a manner that the internal end wall 20 of thedispenser 18 is in contact with the reservoir cap (14 or 22) while atthe same time the reservoir aperture 25 is completely out of phase withthe rodenticide dispenser aperture 26. This package of rodenticide isnow ready for shipment and sale to the final user. To place therodenticide dispenser in operation, a person aligns the reservoiraperture 25 and rodenticide dispenser aperture 26 by rotating thedispenser housing 18 until the desired alignment has been accomplishedand then laying the rodenticide dispenser down in an area of rodentinfestation with the reservoir aperture 25 and rodenticide dispenseraperture 26 being as close as possible to the dispenser supportingsurface, i.e. on the bottom side.

Optionally the dispenser housing 18 may be grooved 21 for receiving arepellent band 29 containing material which is offensive to human tastebuds such as sucrose octa-acetate. Such a repellent band 29 Would serveto prevent a child from consuming the rodenticide by taking thedispenser 18 into its mouth.

Optionally the dispenser housing 18 at or near the rodent aperture 24may be grooved 31 for receiving a crawling insect repellent band 32containing material which is offensive to crawling insects, e.g. ants,such as dimethyl phthalate or dibutyl phthalate.

While for the purposes of illustrating the principles of the inventionthe outwardly extending tubular neck cap receiving portion of reservoir11 has been shown centered on the longitudinal axis of the reservoir 10,the neck 11 can be off centered closer to or adjacent the bottom of thereservoir 10. Furthermore the neck 11 in the modification shown in FIG.4 may have the same diameter as the reservoir 10. Complete emptying ofreservoir 10 into the rodent feeding cup 27 can be facilitated by theuse of a false bottom in the reservoir 10 gradually sloping upwardtowards the opposite end of the reservoir 10.

The rodenticide dispenser is made of any suitable material and can befabricated from materials such as glass, phenolic resins, polystyreneand the like as well as more resilient and nonbreakable materials suchas low density polyethylene.

Having thus described my invention, what I desire to claim and secure byLetters Patent is:

1. A rodenticide feeding dispenser comprising a substantially tubularrodenticide reservoir having a first end surface and an Opposite endsurface including a neck portion adapted to receive a cap including aplanar surface and having an aperture therein and a substantiallyrtatable tubular dispenser housing having movement around thecircumference of said neck and cap which housing has an internal endwall with an aperture therein which is in contact with the planarsurface of the cap and a partial upstanding external wall so positionedwith respect to the internal wall that a rodenticide dispensing cup isformed and with respect to the opposite end of the dispenser housing arodent receiving chamber is formed.

2. The rodenticide dispenser of claim 1 wherein the end surface adaptedto receive a cap is an outwardly extending tubular neck.

3. The combination of claim 2 wherein the cap is an external cap havingthreads on the inside tubular Wall which engage threads on the externalwall of the outwardly extending tubular neck and the dispenser housingis rotatable about the exterior wall of the tubular portion of said cap.

4. The combination according to claim 2 wherein the cap is an internalcap whose circumferential periphery is in an engaging contact with theinterior wall of the outwardly extending tubular neck and the planarsurface of the internal cap opposite the rodenticide reservoir issubstantially in the same plane as the free end of the outwardlyextending tubular neck.

5. The combination of claim 1 wherein the members are made of a materialhaving the properties of polyethylene.

6. The combination of claim 1 wherein the members are made of a materialhaving the properties of polystyrene.

References Cited UNITED STATES PATENTS 2,045,018 6/1936 Loibl 43--13l2,180,199 11/1939 Loibl 43-131 2,632,280 3/1953 Heim 43-131 X 3,017,7171/1962 Caubre 43131 ALDRICH F. MEDBERY, Primary Examiner US. Cl. X.R.119-77; 222

